Suspending and hoisting mechanism.



PATENTED APR. 2, 1907.

0. HETL-ESABTER. SUSPENDING AND HUNTING MECHANISM.

APPLICATION FILED JULY12, 1906.

' INVENTOR A 'F 'QY I QL'I'I'NESS? Q (5% 6M 7 BY W ATTORNEY.

OLAF HETLESAETER, or MILWAUKEE, WISCONSIN, ASSIGNOR TO ALLIS- CHALMERS COMPANY, OF OF NEWV JERSEY.

MILWVAUKEE, WISCONSIN, A CORPORATION SUSPENDING AND HOISTING NIEOHANISIVI.

Specification of Letters Patent.

ratentecl April 2, 1907.

Application filed July 12,1906; Serial No. 325,765.

To aZZ whom, it may concern,-

Be it known that I, OLAF HETLnsAETER, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a certain new and useful Suspending and Hoisting Mechanism, of which the following is a specification.

This invention relates to suspending and hoisting mechanism, and hasfor its object to provide means for suspending an object by a plurality of supporting means in such a way that if one'of said supporting means should rupture the weight of the object would be positively supported by the remaining supporting means. 7

This invention further comprises the details of structure, the combinations, and the relative arrangement of parts to be hereinafter described and claimed.

In the accompanying drawings, which form a part of this specification, and in which the same reference characters are used to designate the same elements in each of the several views of the drawings, and which illustrate an embodiment of the invention, Figure 1 is an elevation of the suspending means shown as used in connection with the bucket of a steam-shovel or dredge. Fig. 2 is an elevation of the supporting means attached to the lug of the bucket. Fig. 8 is an elevation, partly in section, of one of the splicing members. Fig. 4 is an elevation of one of the splicing members as seen at right angles to the position of said member as shown in Fig. 3. Fig. 5 is a sectional elevation of the lug shown in Fig. 2, the link being shown in position and in elevation. Fig. 6 is an elevation of the lug, taken at right angles to the view as shown in Fig. 5, the associated parts being shown in cross-section.

It is customary in excavating work, for example, to support the bucket of a steamshovel or dipper-dredge by two or more supporting means, as the wire ropes R R shown by the drawings. It is also customary to connect these supporting means to an equalizing-lever, such as the lever L. The present invention is designed to provide for absolute freedom of movement between the several parts composing the supporting means in order that the strains may be properly divided among the supporting members and to maintain the parts in operative relation notwithstanding the rupture of one of the supporting splicing members S S, said splicing members being in turn connected to opposite ends of equalizing-lever L by means of the pins P. The lever L is pivotally mounted upon the pin P, which in turn rests within a member T, said member T being adapted to freely move within a bushing O, which is secured within an aperture in the lug 25. By this specific arrangement of parts the elements mentioned can be easily assembled or disassembled, while perfect freedom of motion is as sured.

Each splicing member is a duplicate of the other and consists of a metal body provided with an aperture 8 for receiving and retain ing the end of the rope, twodownwardly-da.

pending lugs 8 8*, between which the lever L is adapted to be received, and two additional lugs 8 8 which are adapted to coact with similar lugs upon the adjacent splicing member. The downwardly-extending lugs s are provided with the apertures s to receive the pin P, while the lugs s are provided with elongated slots 8 to receive the pin p.

It will be noticed that the lever L, being loosely retained within the aperture of the lug 25, would be withdrawn therefrom, provided one of the suspending-ropes were to break while the other rope was lifting. The pin p, however, located in the apertures s of the lugs 8 prevents the separation of the splicing members S and S, thereby preventing the withdrawal of the lever L and associated parts.

The effect of the specific construction shown is that the bucket is, in effect, supported by a bail member from each of the suspending-ropes, so that in case either breaks the lever L cannot be thrown over against the edge of the aperture in the lug t with the injurious efiect due to leverage strains which would be set up.

The provision of the elongated slots 8 in which the pin p is received, permits of a certain relative movement between the splicing members, so that the strains are properly divided between the supporting-ropes, while at the same time in event of breakage of one of the ropes the movement is so limited that no derangement of the parts can take place and the dipper is still under control through the remaining rope.

What I claim is 1. The combination with a member adapted to be supported, of a plurality of means for supporting said member, said means being connected to prevent separation thereof while permitting a limited movement of one means with respect to another.

,2. The combination with a member adapted to. be supported, of an equalizingdever, and a plurality of supporting means attached to said lever, said supporting means being connected to prevent separation thereof.

3. The combination with a member adapted to be supported, of an equalizing-lever and a plurality of supporting means attached to said lever, said supporting means being connected to prevent separation thereof while permitting a limited movement of one means with respect to another.

4. The combination with a member adapted to be supported, said member being provided with an aperture, of an equalizingvided with an aperture, of an equalizinglever projected through said aperture, and a plurality of supporting means attached to said lever, said supporting means being connected to prevent separation thereof while permitting a limited movement of one means with respect to another.

6. The combination with the member t of the lever L and the splicing members S, S provided with the elongated slots 8 said members being connected by the pin 19.

7. The combination of a member adapted to be supported, said member being provided with an aperture, an equalizing lever projected through said aperture and provided with a pivot, said lever and pivot being movably supported within said aperture.

8. The combination with a member adapted to be supported, said member being provided with a cylindrical aperture, revoluble means disposed within said aperture, a lever projected through said aperture and pivoted on said revoluble means, and supporting means attached to sald lever.

In testimony whereof I aflix my signature 4 Witnesses:

FRANK E. DENNETT, G. F. DE WEIN. 

